It has new plug boots on it and everything else test out good . I did have smaller pilots In it 45s and 300 mains that I did plug chop in my opinion the ring it left looked lean. Bike pulled great 1-4 th gear sluggish in 5th and 6th felt even worst. I figured lean on main stepped it up to a 320 chopped it again plug looked lean imo. First time ever tuning these carbs , I'm sure there is a learning curve but they sure are a bitch. I'm almost tempted to jam a set of stock carbs on see if it does the same